28368258 has 8 divisors (see below), whose sum is σ = 56736528. Its totient is φ = 9456084.

The previous prime is 28368253. The next prime is 28368283. The reversal of 28368258 is 85286382.

It is a sphenic number, since it is the product of 3 distinct primes.

28368258 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28368251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2364016 + ... + 2364027.

It is an arithmetic number, because the mean of its divisors is an integer number (7092066).

Almost surely, 2^28368258 is an apocalyptic number.

28368258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28368258 is a wasteful number, since it uses less digits than its factorization.

28368258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728048.

The product of its digits is 184320, while the sum is 42.

The square root of 28368258 is about 5326.1860650939. The cubic root of 28368258 is about 304.9843510738.

The spelling of 28368258 in words is "twenty-eight million, three hundred sixty-eight thousand, two hundred fifty-eight".